Chapter 1 Solutions

Review Questions 1. Which of the following is an advantage of using a client/server network over using a peer-to-peer network? a. A client/server network is simpler to set up. b. A client/server network allows resources to be managed centrally. c. A client/server network does not require a network operating system. d. A client/server network is less expensive to set up. 2. What is the primary function of a file server on a client/server network? e. It monitors how many users are logged on to a WAN. f. It manages access and use of shared applications and data. g. It prevents unauthorized remote users from connecting to a LAN. h. It routes traffic between two or more LANs. 3. Suppose you wanted to share documents among several computers in your household in a peer-to-peer fashion. You could do that by properly configuring which of the following types of software? i. Word-processing software j. Remote authentication software k. Mail client software l. Operating system software 4. The first services widely used by networks were: m. Fax services n. Network management services o. Mail services p. File and print services 5. On a client/server network, clients and servers usually require what to communicate? q. A connectivity device r. A Web site s. A remote access server t. A mail server 6. Your colleague, in describing the benefits of a client/server network, mentions that it’s more scalable than a peer-to-peer network. What does she mean by this? u. The client/server network can be more easily expanded. v. The client/server network is simpler to set up. w. The client/server network can be run on free software. x. The client/server network allows more users to log on at one time. 7. In which of the following environments would a WAN be most appropriate? y. A large data center in which each employee’s access is centrally controlled z. A global hotel chain connecting its reservation desks to a central call center {. A home office connecting its personal computers between the den, living room, and bedroom |. A local newspaper connecting to a global news agency's Web site 8. Which of the following refers to the combination of voice (such as telephone), video, and data signals sent over the same network? }. Switching ~. Remote access . Convergence . Network management 9. In networking, what does a packet refer to? . An electrical signal . A unit of data . An alarm . A way to connect a node with a network 10. How can a server distinguish between many clients on a network? . Each client is identified by a unique network address. . Each client regularly transmits a signal that indicates its network location and unique client characteristics. . Each client has a different electromagnetic characteristic to its signal, similar to differences in human voices. . Each client uses uniquely modified versions of the same network protocol. 11. What device connects a client computer to a network's medium, such as a wire? . Network line extender . Network terminator . Network junction clip . Network interface card 12. What elements of a network ensure that data arrive at their intended destination in the correct sequence? . Rings . Backbones . Protocols . File servers 13. The physical layout of nodes on a network is known as the network's: . Topology . Schematic . Formation . Grid 14. Which of the following is an example of a mail service? . Preventing unauthorized users from gaining access to the network and, in particular, to its mail server . Ensuring that users are not running more copies of an e-mail client than have been purchased . Exchanging messages between mail servers on different networks . Enabling users to print messages from their e-mail client software 15. Which of the following network topologies is most common on today's networks? . Ring . Fan . Star . Bus 16. Security is a concern when using remote access servers on a network because: . Access servers enable computers to connect to a network and obtain access to its resources, thereby exposing the network to the outside world. . Access servers have poor password enforcement capabilities and rely on users to choose good passwords. . Access servers cannot accept encoded data transfers, requiring users to transmit plain text to and from the network. . Access servers are difficult to understand and support, and so many networks are using them incorrectly and perhaps insecurely. 17. Which of the following is an example of asset management on a client/server network? . Ensuring that sensitive data is secured from unauthorized access . Assessing the peak activity times on a server and ensuring extra processing power is available at those times . Backing up critical data files on a regular basis . Determining how many handheld computers are in a company’s warehouse 18. Distributing data transfer activity equally over several devices or components belongs to which category of network management services? . Traffic monitoring . Load balancing . Address management . File and print services 19. Apache is a popular example of what type of networking software? . License tracking . Web server . Backup . Mail server 20. What organization sponsors the CCNA and CCIE certifications? . Cisco . CompTIA . IEEE . WITI